Alert archive / Minnesota / Flash Flood Warnings in 2019

Flash Flood Warning 9, NWS Twin Cities, MN

July 5, 2019Rice County, Steele County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 5, 2019, 9:10 PM CDT for Rice County, Steele County, Minnesota. It was in force for 4 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 5, 2019, 9:10 PM CDT (02:10 UTC)
Expired
Jul 6, 2019, 1:15 AM CDT
In force
4 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
None

Counties Rice County, MN, Steele County, MN

The radar

The Minneapolis radar (KMPX), 90 km from the middle of the area, began a volume at 02:11 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jul 5, 10:40 PM CDTFLASH FLOODOwatonna, MNSTEELE COUNTY DISPATCH REPORTED NINE DIFFERENT ROADS IN OWATONNA WHERE ROADS ARE BARRICADED DUE TO HIGH WATER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.2 hours before the alert went out and 92 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2019-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 109 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2019-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
109 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
257 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

As transmitted.

862 
WGUS53 KMPX 060210
FFWMPX
MNC131-147-060615-
/O.NEW.KMPX.FF.W.0009.190706T0210Z-190706T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Twin Cities/Chanhassen MN
910 PM CDT Fri Jul 5 2019

The National Weather Service in The Twin Cities has issued a

* Flash Flood Warning for...
  Northeastern Steele County in south central Minnesota...
  Southeastern Rice County in south central Minnesota...

* Until 115 AM CDT.

* At 910 PM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Owatonna, Medford, Clinton Falls, Merton, Moland and Owatonna
  Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 4403 9333 4424 9325 4424 9304 4399 9305
      4398 9305

$$

BORGHOFF

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 5, 7:57 PM CDTSpecial Weather StatementMPXWaseca2 hr
Jul 5, 8:22 PM CDTFlash Flood WarningMPXLe Sueur, Rice, Steele, Waseca4 hr
Jul 5, 8:45 PM CDTRiver Flood WarningMPXLe Sueur, Scott, Sibley70 hr
Jul 5, 8:45 PM CDTRiver Flood WarningMPXCarver, Scott5 days
Jul 5, 8:45 PM CDTRiver Flood WarningMPXCarver8 days
Jul 5, 8:45 PM CDTRiver Flood WarningMPXRedwood7 days
Jul 5, 8:46 PM CDTFlash Flood WarningMPXDakota, Goodhue4 hr
Jul 6, 6:44 AM CDTRiver Flood WarningMPXBrown45 hr

Nearby

Flash Flood Warnings in Minnesota, 2019Every flash flood warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.